lldb/test/API/functionalities/unwind/aarch64_unwind_pac/main.c

   1 // This program makes a multi tier nested function call to test AArch64
   2 // Pointer Authentication feature.
   3
   4 // To enable PAC return address signing compile with following clang arguments:
   5 // -march=armv8.3-a -mbranch-protection=pac-ret+leaf
   6
   7 #include <stdlib.h>
   8
   9 static void __attribute__((noinline)) func_c(void) {
  10   exit(0); // Frame func_c
  11 }
  12
  13 static void __attribute__((noinline)) func_b(void) {
  14   func_c(); // Frame func_b
  15 }
  16
  17 static void __attribute__((noinline)) func_a(void) {
  18   func_b(); // Frame func_a
  19 }
  20
  21 int main(int argc, char *argv[]) {
  22   func_a(); // Frame main
  23   return 0;
  24 }